e-mail networks on campus

"Columbia University researchers studied more than 14 million email messages generated by more than 43,000 members of a large university over the course of a year. The study tracked pairs of email correspondents based on attributes like gender, age, departmental affiliation, status, and years in the community, and classes taught or attended.

The study looked at the factors that influence whether strangers form a connection via mutual acquaintances. As it turns out, key factors are the strength of ties to mutual acquaintances, number of mutual acquaintances, and having shared classes, while individual attributes don't have a significant influence in forming connections." From TRM: Technology Research News

Full article @ Science.Org